{"id":"CVE-2013-4304","aliases":["EUVD-2013-4198","GHSA-537f-m8rq-x6vw"],"status":"published","title":"The CentralAuth extension for MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x...","description":"The CentralAuth extension for MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2 caches a valid CentralAuthUser object in the centralauth_User cookie even when a user has not successfully logged in, which allows remote attackers to bypass authentication without a password.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02075,"percentile":0.81601,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2014-01-26T20:00:00Z","modified":"2026-06-16T23:56:59Z","products":[{"vendor":"brion_vibber","product":"centralauth_extension"},{"vendor":"mediawiki","product":"mediawiki"}],"references":[{"url":"http://seclists.org/oss-sec/2013/q3/553","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/86894","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-September/000133.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Patch"]},{"url":"https://bugzilla.wikimedia.org/show_bug.cgi?id=52338","tags":["x_refsource_CONFIRM","x_transferred","Exploit"]},{"url":"http://osvdb.org/96910","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://secunia.com/advisories/54723","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-4304"},{"url":"https://github.com/advisories/GHSA-537f-m8rq-x6vw"}],"sources":{"cve":[{"id":"CVE-2013-4304","description":"The CentralAuth extension for MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2 caches a valid CentralAuthUser object in the centralauth_User cookie even when a user has not successfully logged in, which allows remote attackers to bypass authentication without a password.","status":"published","published":"2014-01-26T20:00:00Z","modified":"2024-08-06T16:38:01.869Z","updated_at":"2026-11-02T14:34:57.869657Z"}],"euvd":[{"id":"EUVD-2013-4198","description":"The CentralAuth extension for MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2 caches a valid CentralAuthUser object in the centralauth_User cookie even when a user has not successfully logged in, which allows remote attackers to bypass authentication without a password.","status":"published","published":"2014-01-26T20:00:00Z","modified":"2024-08-06T16:38:01Z","updated_at":"2026-11-03T01:56:32.70868Z"}],"ghsa":[{"id":"GHSA-537f-m8rq-x6vw","title":"The CentralAuth extension for MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x...","description":"The CentralAuth extension for MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2 caches a valid CentralAuthUser object in the centralauth_User cookie even when a user has not successfully logged in, which allows remote attackers to bypass authentication without a password.","status":"published","published":"2022-05-17T01:33:06Z","modified":"2023-02-03T05:04:25Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:53:32.764591Z"}],"nvd":[{"id":"CVE-2013-4304","description":"The CentralAuth extension for MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2 caches a valid CentralAuthUser object in the centralauth_User cookie even when a user has not successfully logged in, which allows remote attackers to bypass authentication without a password.","status":"published","published":"2014-01-26T20:55:04.173Z","modified":"2026-06-16T23:56:59.563Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:02:48.062712Z"}]}}